what pin do you check for 5 volts on map sencor

Question

po107 code is showing on my 05 chevy 1500

Answer 1

P0107 MAP sensor circuit low input

The gray wire is check for 5 volts in the real world it would measure 4.5 volts to 5 volts, When P0107 set this code is not for it 5 volts refference, but the signal voltage is low. cleaning the MAF sensor may help, if it does not resolve any issue , it the MAF sensor